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ATS-Science 7
Genetics Unit
Question | Answer |
---|---|
The passing on of traits from an organism to its offspring is called __________. | Heredity |
What is the basic units of heredity that carry traits?__________ | Genes |
When a gene is neither doninant nor recessive, and it appears to blend, it is called a __________ gene. | Incomplete Dominance |
Who was the famous person who studied the inheritance pattern of pea plants? | Gregor Mendel |
If two heterozygous plants are crossed...what _____% is heterozygous and what _____% is homozygous? | 50% & 50% |
What do you call the process by which sex cells are produced? | Meiosis |
A change in genes or chromosomes that causes a new trait to be inherited is called a __________. | Mutation |
The gender (male or female) is determined by what? | X and Y Chromosomes |
Which of the following are genotypes? round XY purple Rr tt female TT tall husky wrinkled | XY Rr tt TT |
Which of the following are phenotypes? round XY purple Rr tt female TT tall husky wrinkled | round purple female tall husky wrinkled |
The different forms of a gene are called __________? | alleles |
The shape of DNA is described as a _________ _________. | double helix |
What are the 4 bases of DNA? | (ACGT) Adenine Cytosine Guanine Thymine |
The steps or "rungs" of the DNA ladder are composed of bases. What are the four letters and how do they pair up (bond)? | A-T or T-A and C-G or G-C |
Which of these examples are a genetic disease or disorder? Down Syndrome Albino Chicken Pox Color Blindness Warts Malaria | Down Syndrome Albino Color Blindness |
Scientists can now make plants resistant to disease; do cloning; or create new food products. These are all examples of __________ __________. | Genetic Engineering |
A genotype that has 2 identical alleles for a trait is called __________. | homozygous |
How many cells do each sex cell contribute to produce offspring? | 1/2 the normal amount |
The essential molecule in living organisms that carries the genetic code is called __________. | DNA |
Genetic disorders are caused by __________ in the genes. | mutations |
No 2 people have the exact same DNA, except for __________ __________. | Identical Twins |
Which of these traits can be inheirited? eye color hair color personality IQ level blood type | eye color hair color blood type |
In DNA, adenine (A) will pair with _____. thymine (T) Cytosine (C) Guanine (G) Adenine (A) | Thymine (T) |
Which set of genes would be heterozygous (hybrid)? tt Rr T PP Tt Pp PP | Rr Tt Pp |
Which set of genes would be homozygous (true breed)? tt Rr T PP Tt Pp PP | tt PP PP |
In a heterozygous genotype, the stronger gene is called the __________ one. | dominent |
In a homozygous genotype, the weaker gene is called the __________ one. | recessive |
Who were the 2 people responsible for discovering the shape of DNA? | Watson & Crick |
Chromosomes are made of __________ & __________. | DNA & Protein |
The 2 products of photosynthesis are __________ & __________. | Glucose & Oxygen |
The rod-like, compressed form of DNA in the nucleus are called __________. | Chromosomes |
Name the person who took xray diffraction pictures of DNA pre-Watson & Crick is __________ __________. | Rosalind Franklin |
How are photosynthesis and cellular respiration related? | They have opposite chemical reactions. |
EDD SCENARIO- | Title: Hypothesis: IV: Levels of IV: # of Trials: DV: Constants: |
EDD SCENARIO- | Title: Hypothesis: IV: Levels of IV: # of Trials: DV: Constants: |
EDD SCENARIO- | Title: Hypothesis: IV: Levels of IV: # of Trials: DV: Constants: |
EDD SCENARIO- | Title: Hypothesis: IV: Levels of IV: # of Trials: DV: Constants: |
If a black guinea pig (BB) is MUST SEE crossed with a white guinea pig (bb), ACTUAL what % of the offspring will have black fur? FLASHCARD | 100% |
If you cross a tall plant with the genotype TT MUST SEE with a short plant with the genotype tt, ACTUAL the possible genotypes in the offspring are __? FLASHCARD | Tt |
What would the possible genotypes MUST SEE be in this Punnett Square? ACTUAL FLASHCARD | Tall |
Which statement is true about DNA: ? DNA stores hereditary information. ? Everyone has unique DNA. ? All animals of the same species have the same DNA. ? DNA is the code for life. | -DNA stores hereditary information. -DNA is the code for life. |